Problem with mulberries is that when you pick the fruit the short green stalk comes with it. So I detach each one painstakingly back in the kitchen. Yes, you could just eat the stalk. But I don't like that blunt interruption, so I spend some time removing them. Purple fingers.
Worth it, though.
Black mulberries, straight up. The sugar was overkill, but I needed its grit between my teeth to dissolve in that black juice. A private date with memory.